“Even a colour-sense is more important, in the development of the individual, than a sense of right and wrong. Aesthetics, in fact, are to Ethics in the sphere of conscious civilisation, what, in the sphere of the external world, sexual is to natural selection. Ethics, like natural selection, make existence possible. Aesthetics, like sexual selection, make life lovely and wonderful, fill it with new forms, and give it progress, and variety and change.”